After a bit of waiting, Samsung finally released the official Android 6.0.1 Marshmallow update for Samsung Galaxy S6 and S6 Edge. However, the latest Android OS firmware is currently being rolled out only to units in South Korea.

According to SamMobile, there are still no specific details as to when the South Korean tech giant plans to unleash the Android 6.0.1 Marshmallow in other markets. But since the rollout already started, there’s a chance that Samsung Galaxy S6 and S6 Edge users in other regions might not have to wait long for the arrival of the official Marshmallow update.

Android Authority further shared details about the possible release of Android 6.0.1 Marshmallow update for the 2015 flagship smartphones in other countries. The post reads as follows.

“With South Korea users now formally receiving Marshmallow, it is probably just a matter of days or weeks before the international roll-out begins for unlocked models. In particular the UK was also involved in the beta test program and thus it can be expected that said territory will be among the first to receive the update.”

Sam Mobile’s report explained that prior to the release of the official Android 6.0.1 Marshmallow for Samsung Galaxy S6 and S6 Edge in Korea, the smartphone maker launched a beta testing program to try out the latest Android OS to said mobile devices.

Samsung Galaxy S6 and S6 Edge hit the shelves in March, 2015. Team Android noted that the Marshmallow builds released are only compatible to variants bearing the model numbers G920s and G925s. Because of the limited availability, it is vital for S6 and S6 Edge users to check their device’s model number first before installing the official Android 6.0.1 Marshmallow update.

Samsung Galaxy S6 Edge is the curved screen version of the standard flagship, the S6. For more of the features of these two Samsung handsets, check out the video below from DetroitBORG.

Meanwhile, an unofficial firmware based on Android 6.0.1 Marshmallow update was released for Samsung Galaxy S5. Team Android reported that the LTE variant of the 2014 flagship device with model number G900F can now be installed with ResurrectionRemix ROM, based on the Marshmallow OS.

According to the report, the custom firmware provides a stable performance as well as several features for the Samsung smartphone. Those who wish to install Android 6.0.1 Marshmallow update on Samsung Galaxy S5 LTE using a custom ROM can visit the Team Android report linked above for the installation prerequisites and a comprehensive guide.

Officially, Samsung Galaxy S5 can only be upgraded with Android 5.0 Lollipop, as noted on the GSM Arena’s particular specs list for the handset. The dust and waterproof 2014 flagship device is equipped with Super AMOLED capacitive touchscreen with 1080 x 1920 resolution. Under the hood, the smartphone is packed with a Qualcomm MSM8974AC Snapdragon 801 chipset.

(Photo by Donald Bowers/Getty Images for Samsung)

Android Marshmallow offers several new features such as Doze, which puts the smartphone into a sleep state automatically, thus increasing the battery life,” the official Android website described.

Also, Android 6.0.1 users can also enjoy Now on Tap, a smarter and quicker virtual assistant application. Marshmallow OS also supports Android for Work, which is “an enterprise mobility management (EMM) platform that lets companies deliver a secure, productive, and rich mobile experience to their employees,” the official Google support page noted.

Team Android also shared that the Android 6.0 Marshmallow brings in fingerprint support as well as bug fixes for issues found on former Lollipop builds. There are also TouchWiz additions, different icon styles, a new feature for Edge, and overhauled default Samsung apps available from the official Android Marshmallow.